Stroller with detachable seat member
CA 2178425 C · Owner: Wang, Frank · Inventors: Wang, Frank
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A stroller includes a stroller frame with parallel front and rear horizontal rod members, and a seat member having a seat portion with a bottom side that is provided with a mounting unit for mounting detachably the seat member on the front and rear rod members. The mounting unit includes at least one hook unit for engaging one of the front and rear rod members and a, spring-loaded retaining device for engaging releasably the other one of the front and rear rod members.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed June 6, 1996 and granted November 2, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 6, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 6, 2018.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.